Slip-sheeting device



' Feb. 23', 1926. 1,574,148

- H. w. DE JARNETTE SLIP SHEETING DEVICE Filed June 15, 1925 3 Sheets-Sheet 1 d zvezzior 53%) ycZMMMg:

Feb. 23 1926. 1,574,148

H. W. DE JARNETTE SLIP SHEETING DEVICE Filed June 15, 1925 3 Sheets-Sheet 2 w/a M/arz Feb. 23,1926. 1,574,148

H. W. DE JARNETTE SLIP SHEETING DEVICE Filed June 15. 1925 3 Sheets-Sheet 5 72261 15 l/Zlmkmei/e 23 Mozzzgy r viewlnken on the liHGQ -QOf I l Patented Feb. 23, 1926.

un-1m n s'r sue-summits nnvron.

s mm ti n -fi1e .d'Jnne 15, 12.25. semi ml 37-33 1.

To 1 7i Hf/ 50921 2 25 may Gouger-n.-

Be it known that 11, l lnwny WV. "DE HAlb ls-mun, a citizen ol -the United :Statesfand 'a resident'ol' Des Moines, in the connity o'f Folk and 'tiit-ste of Iowa, have inventeda inexpensive construction.

In printing presses wherekeolor wvorlr is done difiiculty is encountered on 'account of the fact that the colored sheets do not dry quihly enough to prevent sineuring the ink it'roni the printed sheet to the sheet next tihereunder.

In order to prevent suchs nearing of the ink and the offsetting; thereof from one sheet to nnother, ll. is a "common practice to place between the successiveprinted sheets other sheels called slip sheets.

it is a difiioult and slow process to insert the slip s 1eetsbetweenthe successive printed sheets. V

The purposeof my invent-ion is :to provide a deflce which eanhe used as an attachment to 1:-'inting machines, which will automatically insert the slip sheets between the successive printed sheets aitenthe printinn-operation. I

Yiith these and other objects in Vie/Q1113 invention consists in the construction, -a1' rnng'einent and combination of the various parts or my device, whereby the objects 'conteinplated are atteined, -aslhereinaiter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawinns, in which:

Figure '1 s'howsn top or plan View of a portion 01 a printingineehine equipped with :1 slipsheeting-deviee enihoeying my invention.

Figure 2 is an enlarged detaih sectional igure 1.

F igure 3 is a similar 'view showing the pa s in another ;positionin thesecond stage of the operation.

Figure is a similar View showing the parts at the next'successive stage of operation.

Figure '5 is another similar view illustrating the pa rts in the next or iourth stageof t'heoperation. i

Figure =6 is a similar niew showing the parts in-the firth stage of operation.

Figure t' is" u .deteil, sectional view taken on the line 7-7 of Figure 2.

"Figure 8 is 'a detail, sectional view taken on fll8 l-ll1-'8-8'Of Figure 1. V

' Figure 9 is. a similar j-view taken on the line 9-9 of "1.

Figure 10 is asiinilar --view taken on the line 10-10o i' Figure '1. j

' Figure 11 isa similar view taken on the line 1l11 of Figure 1. V i i Figure 12 'is 'a detailpseetional =view ta-ken on 'the line 12 1 201 Figure 1 looking in the direction indicated the arrows on the section line. v

Figure 18 is a View similar to that shown in Figure 12 sl'iowing the *parts in .another I position; and

Figure: less a detaih'seot ional view taken I 011 the ll -i l of Figure 12; I have shown 'a very "smail l part 10% "the press in {the present case because the press -for1ns11o 'parto'f my present inventlon and to show the rparts' thereof would eletraot' fro-1n clearness in the illustration bit the apparatus;

I have shown in Figure 2 of the drawings partfiof the supporting frame 0f the press as indicated by "the reference character 10 and 1n Flgures land 2, I heveshowneerta'm frame*inenihers, such r01- instance as the fpn'alll"spaced frame bars 11 we bel ow thein the parallel spaced-frame bars 1 2' v Arranged ftoltravl on the frame members 11 are carriages 13, which have flanged wheels =19 supported on theframe menibers 11. The carriages 13 are 1conneoted by a fixed shaft 20, a rock shaft 21 and a rook shaft 22. The rock s'hzr'ft :22 is supported in thefdllowingmanner: i i v "Near each end o t the fixed shaft 20, i a plate 23 is fixed thereto by Qmeans'o f 21 set sorewQgh The rock shaft 22 hangs jibe lower part oft he plates 23. Fied to the shat 20 are spaced fly sticks 25, wliioli reciprocatelengthwise-in the machine and support-the printedv sheets of paper. i

-".[l1e carriages 13 and the fly sticks-25 are reciprocated in the machine by means of actuating arms 26 shown in Figures 1 and 2 for instance for sliding the carriages 13 backwardly and forwardly on the frame members 11 over a receiving device 27, part of which is illustrated in Figure 6..

A sheet of paper 28 is placed on the fly sticks when they are in their right-hand po sition as illustrated in Figures 1 and 2, and

thereupon the machine operates to move the carriages and fly sticks to the left until the fly sticks are above the receiver 27, then the fly sticks are moved back again with a quick movement which withdraws them from under the sheet of paper and drops the paper into the receiving member 27 upon a platform, which is usually of the type that automatically moves downwardly under'the supply of paper. I

On the opposite side of the receiving member 27 from that where the paper is received from the fly sticks is an inclined platform 29 upon which may rest sheets of paper,

such for instance as slip sheets 30. I 1 Sometimes the slip sheetsare fed by .nano

above each printed sheet dropped int-1 the receiver 27. I

The parts heretofore described are SlfiIKlard printing machine parts and in themselves are not the invention which is the subject of this application.

Extending from the rock shaft 21 on the ordinary machine are fingers 3Q, which when the fly sticks 25are at their right-hand limit of movement extend downwardly ad jacent to the ends of the fly sticks 25 tor serving as stops to limit the sliding movement of the paper 28 on the flysticks.

The ordinary machines are provided with mechanism not here shown for rocking the shaft 21 ust as the fiy StlClKSlGElCll their lefthand limit of movement for swinging the fingers 30 to their position shown for instance in Figure4 in order to let the paper 28 slide off the fly sticks25 when the latter arewithdrawn. s 7

It is my purpose to provide in connection with the standard machine parts already described certain means whereby whena sheet of paper has been carried by the fly sticksto I position above'the receiver 27, that sheet of paper is gripped by the edge and held during the withdrawal of the fly sticks, and to provide further means operating with the carriages for gripping a-slip sheet and carrying it under the printed sheet during the return movement of the carriages .and fly sticks. Such mechanism, I will now describe. Supported bymeans of suitable brackets 31 approximately above the delivery end of the platform 29 is a liXedsha-ft 32 and above Fixed on the shaft 32 as by set screws 34 are gripping fingers 3 5 having inset in their-projecting upper faces rubber strips or the like 36 for better gripping of the sheets of paper.

Fixed on the rock shaft 33 by means of set screws 37 are coacting' gripping fingers 38.

For actuating the fingers 38 to cause them to grip the sheets 28 between them and the fingers 35 Thave provided the following means; 7

At one end of the shafts 32 and 33, a plate 39 is mounted thereon. Adjacent to the plate 39, a bracket arm 40 is fixed to the shaft 33 by means of a set screw 41. A cam plate 42 is pivoted as at 43 011 the plate 39. The cam plate 42'is of such shape that when in one position of its pivotal movement, its face 42 engages one side of the arm 40 as shown in Figure 13.

. A- spring 44 secured to the arm 40 and to the shaft 43 for the cam plate 42 tends to pull the arm 40 downwardly, so that when the cam plate 42 is in the position shown in Figure 13, the spring will pull the arm 40 to its downward limit of movement and in that position of the arm 40, the shaft 33 will have been rocked to cause the fingers 38 to have a gripping engagement with the fingers 35. r

position shown in Figure 13 to its position shown in Figure 12, the point 42 of the c am plate will engage the under surface of the'arm40 for rocking it upwardly and 'thusrocking the shaft 33 for moving the fingers 38 from their position shown in Figure 5 for example to their position shown in Figure 6.

At the beginning of the operation of the machine the fingers 38 stand in their position shown in Figures and 6, and the cam plate 42 stands in the position shown in Figure 12.

The arrangement of the spring 44. is such that when the cam plate is in the position shown in Figure 1 2, the spring tends to hold it in that position, whereas when the cam plate moves to its position shown in Figure 1 3, the spring tends to hold it in that position.

For moving the cam plate from the position shown in Figure 12 to the position shown in'Figure 13, wien a sheet of paper has been carried by the fly sticks to position above the receiver 2?, I provide the following mechanism:

Pivoted as at 45 to the cam plate 42 is an upright extension 46 on a rod 47, which eX- tends alongside the frame member 11 as shown in Figures 12 and 13 through a guide 7 yided.

of the rods? slidably as shown in Figure- 14.

A set screw 53 is mounted in the hearing block 52 for locking the rod 47 therein The bearing bloclr52has formed thereon a spindle'fi l projected through a suitable opening in the arm 51 and having ahead 55 countersunk and riveted so as to allow some rotary movement of the bloel; 52 relative to the arm 51.

)n theshaft 20 in line between the cam plate 12and the arm 51 is fixed an actuating member 56 having converging inclined faces 55 and 56". A pin 57 projects from the face as shown in Figures 12 and '13.

The parts are so arranged thatthe cam plate 12 stands in the position shown in Figure 12 at "the commencement of an operation of the device.

When the carriages 13 and the fly sticks move from their position shown in Figure 1 to their position shown for instance lin' Figure 3, the pin 57 engages the camplate 4:2 and moves it from its position shown in Figure '1 to its positions shown inl igure 13. V

The spring 14; then pulls the a 111 40 downwart ly, thus rockingthe shaft 33 and moving the fingers 38 from their position shown in Figure 3 to their position shown in :Figure 1} for gripping the edge of the sheet of paper 28. I I

Ordinary niechanisnr on the machine causes the arms 30 to rise at substantially the same time from :their position shownin Figure to their position shown in Figure 4:. the carriages 13 and the fly sticks 25 more back toward their starting position, it

Will be seen that the paper is pulled off the 'm -QHLQ 12 simian.

stroke the actuating member 56 engages the rain face 5lf' of the arm 51'for actuatlng the and 4&7 lengthwise and thus swinging the cam plate 12 from its position shown iirFigure 12-3 to its position shown in Figure 12.; ".lhis raises the fingers 38 from their position the fly sticks 25.

During the return movement of the fly sticks, the rollers 59 engage-the paper 28 and hold it substantially taut.

For pulling a slip sheet 30 underneaththe sheetof paper 28 gripped-by the fingers 38 and 35, the following mechanism. is pro the support '65.

hen the carriages finish theirreturn @111 the shaftu2O are fixed fingers (it). :On the shaft 22 are fixed lingers 61" to icoact with the fingers 60. A baror arm 62 :is fixed on the shaft 22 as shown in :Figures i1 and and projects both forwardly and rearwardlytherefrom. I

*W hat may be called the forward end of the arm 62 :has connectedtherewith a spring 63, which is also connected with the plate 23 for :normally holding the shaft 22 .in such position that the fingers 161 a reihe'ld in en- .gagement with the finger-s60.

On the oppositely projecting end of the arm from %the end to which the spring 63 is attached is'a pin ea.

tions by means of :the set screw 66.

Pivoted EtO the upper forward corner on .the inside .o'fithe support 655 is a cam strip or .the like 66, which at its other end has pin 67 traveling in a curved slot- 68 in Normally the rear endof the eam 66 is at the bottom of the slot 68. 'The parts are so arranged that the strip (56 is in the path of' the travel of the pin strip :64 during the reciprocation of the carriages 13. They are also so arranged ithat when the carriages move fromltheir position shown in Figure 2 for moving the lily sticks to the position shown for instance in Figure 3.

the pin :64 will engage and travel upwardly on the stripfifi for thus rocking the shaft 22 and opening the lingers dl as illustrated in "Figure 3. I I

This movement .is arranged for in order that a slip sheet 80 which has been fed 'rearwardly in the machine may h-ave its rearward edge in position to be gripp'edfhetween the rfingers 60 and 61 when the pin =64: clears the carn'strip' '66.

'On oneof the frame members 12 is another channel-shaped member 65 811111101 to the member 65 havlng t-hereon a similarly oivoted cam 'stri 66 which however is pivoted at its rearward -end-to the upper rearward part of :the ,member 65 and has its pin and slot connection with the forward end of-the member 65-Psimila1nto that ofthe cam strip 66.

On the rearward movement of' thexcarriages 13, the pin 64 passes" under the cam strip 66 and raises its -freei-end witho'utroeking theshaft 22, but rides up theeam strip 66 to open the fingers 66 and release the slip sheet, after which thepin64 clears the rearward end of the strip 66 and the'spring 53 actuatesthe arm*62 forzrocking the-shaft 22 and closingthe fingers-61.- I

For holding the slip sheet taut; while it is being drawn rearwardly by th'elfingers 60 and 6l,'there are pivoted on the :Ellilft 32 arms 69 on which are rollers 70. The arms 69 have curved extensions 71 (see Figure 10) arranged to coact with cam discs 72 having notches 73 and arranged on the rock shaft 33.

The parts just described are so arranged that when the shaft 33 is rocked to position for holding the fingers 38 in open position the extensions 71 are engaged by such portions of the cams 72 on the shaft 33 as to cause the rollers to be held up as shown in Figure 10.

WVhen, however, the shaft 33 is rocked for closing the fingers 38, the notches 73 are moved to position to receive the ends of the curved extensions 71 and permit the rollers 7 O to drop downwardly upon the slip sheets 30.

For further facilitating the accuracy and efliciency of the m2tCl1l118,tl181G is provided supported on the frame members just below th-e'discharge end of the platform 29, a transverse shaft 74 on which a projecting finger 75 is fixed bymeans of a set screw 76. The finger 75 is connected by means of a sprin 77 with an arm 78 fixed on the shaft 32. l

On the rock shaft 33 is an arm 79 pivoted to which is a rod 80 extended'loosely through a guide opening 81 in the arm 78 and resting adjacent to the finger 75 when the fingers 38 are open.

On the rod 74; are fixed stop fingers 82 which when the shaft 74 is rocked to its position with the fingers 75 at their upper limit of movement shown in Figure 9, project upwardly through slots 83 in the platform 29 and slightly above the platform as shown in Figures 2, 3 and 6.

The top slip sheet 30 is and rearwardly in the machine until its rearward edge engages the stop fingers 82, as illustrated for instance in Figure 3.

hen the shaft 33 is rocked for causing the fingers 38 to move for gripping the printed sheet 28 between the fingers38 andthe fingers 35, the movement of the rock shaft 33 aetuates the rod 30 for pressing the finger 75 downwardly against the tension of the spring 77 and thus rocking the shaft 7a for lowering the stop fingers, 82 from their position shown in Figure 3 to their position illustrated in Figure 4E.

Thismovement occurs at such a time as to permit the fingers 60 and 61V to pull the slip sheet without any interference from the stop fingers 82. i

It will be understood that the various fingers are so staggered as not to interfere with each other or with the fly sticks.

I will now describe ingreater detail in proper sequence the operation of the chine.

\Vhen the fly sticks are in their righthand positions as shown in Figure 1 ready to receive a printed sheet, the fingers 6]. are

ina-

fed downwardly held in closed position by means of the spring 63 and the arm 62 fixed on the rock shaft 22.

The fingers 38 are held in raised position because the cam plate 42 is in its position shown 111 Figure 12, where it 18 held by means of the spring 4 1.

The operator feeds the top slip sheet 30 from the position on top of the pile d0wn wardly and re'arwardly to its position shown in Figure 3.

The operation of the machine parts not here shown advances the fly sticks from their position shown in Figure shown in Figure 3.

The pin 6% slides under and raises the cam strip 66* without being effected thereby.

[is the fly sticks move from their position shown in Figure 2 toward position shown in Figure '3, the pin'fit slides up the cam strip 66, thereby rocking the shaft 22 and causing 1 to their position the fingers 26 to move to open position readily to receive between them and the fingers 60 the rearward edge of the top slip sheet 50.

Parts of the machine which are standard and not here shown rock the shaft 21 for lifting the fingers 30 and lowering the of the strip 66, the spring63 rocks the shaft 22 for moving the fingers 61 to grippiiigposition for'engaging the slip sheet.

The parts are then in the position shown inFigure 4:.

The rocking of the shaft 33 for lowering the fingers 38 aetuates the arm 79 (see Figure9) andthe rod 80 for engaging the finger I 75 and rocking the shaft 74 for lowering the stop fingers 82. The rocking of the shaft 33 also brings the cams 72 to position where the slots (0 receive the curved extenslons 71 on the arms 69 permitting the rollers 70 to drop by gravity.

The fiy sticks then reciprocate rearwardly as shown in Figure 5' with the slip sheet 30 gripped between the fingers 60 and 61.

During this rearward movement of the fly sticks, the rollers 59 hold the printed sheet 28 taut and the rollers 7 0 hold the slip sheet taut until both sheets stand above the pile D shown in Figure 6.

Durin the return stroke of the fly sticks. the pin 69 travels under the cam strip 66 raising its free end without interfering with 01' operating the shaft 22.

their spreading.

ritthe completion of the return stroke ot the fly sticks, the pin] (it travels up the cam strip 66 for thus rocking the shaft 22.

against the tension of the spring 63 (see Figures 1, 2' and 8) for operatii'igt-he, lingers.

ers 59.

Likewise at the completion of the return stroke of the fly sticks, the point of the cam 56 engages the arm 51 swinging it downwardly and forwardly. in the machine for moving the rod at? lengthwise and moving the cam plate 42 from its position shown in Figure 13 to its position shown in Figure 12. p

This movement of the cam: plate permits the spring as to actuate the arm 40 for rocking the shaft 33 for raising the fingers 36 and releasing the printed sheet 28.

The same movement of the shaft 33 brings the cams 72 t0? position for so engaging the extensions 71 as to raise the rollers'ZO. (See Figure 10.)

The same movement of the shaft 73 also raises the arms 79 and the rods 80 for permitting the spring i'l' to raise the arm-75 and thus rock the shaft '24 for moving the stop lingers 82 from. their position illustrated in Figure 5 to their position shown in Figure 6.

The machine is then ready for another operation. a

1 might say that I have connected the shafts 20 and 22 by links 83 for preventing The shafts 38 and 32 are connected: by similar links 8d (see Figure 1) for preventing their spreading.

It Will be seen from the foregoing that the present slip sheeting device provides an attachment for the standard printing ma- ,chine, whereby the printed sheet instead of being simply dropped when the fly sticks slide rearivardly with aquick movement is gripped at their forward ends and are held by the rollers 59 engaged with the fly. sticks, so as to be held taut during the return movement oi"- the fly sticks. V

The slip sheet is engaged by fingers carried by the shaft 20 and 22 and drawn to position below the printed sheet and above the pile D. i 7 p 7 In order to prevent the. slip sheet from dragging over the topsheet on the pile, the rollers engage the moving slip sheet and hold it taut. Thus there is no dragging movement of or on the printed sheets Which would tend to sinear'the ink thereon.

Both the printed sheets and the slip sheets'are held taut until they are dropped and permitted to rest on the pile D With the danger 0'51 smearing the ink-reduced? to a nnimum-- Some changes may be made in the details of the structure of my 'slipsheeting device without any departure from the real spirit a purpose otiny invention, and it is my .LALL

intentionto cover by my claims any such changes or modifications in structure and any use of mechanical QQUIVELlGHt S,Wh1Cll may be included Within the real scope of my invention. and 0t my claims.

I claim as my invention:

1. In a machine of the class described, the

combination of means for advancing a printed sheet to a. predetermined positionand toithen. return to starting P0S1l'i101'1,fl11l the combination of means for advancing a printed sheet to a predetermined position. and to then return to starting position, and

means for. gripping one edge or thesheet when it reaches such predetermined position and for holding it during the return. movemen holding such sheet tautduring such return, movement.

3. In a machine of the class described, the combination of means for advancing a printed sheet to a predetermined.position.

and to then return to starting position,

means for gripping one edge of the sheet Whenit reaches such predetermined posi tion and for holding it during the return movement of said first means, and means for releasing'the gripping means at the completion of's uch return movement.

45. In a machine of the class described, the combination of .means for advancing a;

printed sheetto a predetermined position. and to then return to starting position, and means for gripping one edge of the sheet when it reaches such predetermined position and for holding it during the return. movement of said firstmeans, means for holding such sheet taut during such return move ment,'and means for releasing the gripping means at the completion of such return movement. w

5. In a'inachine oi the-class described,

the combination of means for advancing a printed sheet to a predetermined position and to then return to starting position,

means for gripping one edge of the sheet when it reaches such predetermined posi tion and for holding it during the return movement of said first means, and means carried by said first means for drawing a slip sheet under the printed sheet on such.

return moven'ient. v

6. In a slip sheeting device, means for of said means, and means for moving a printed sheet to a predetermined position, and means carried by said first means for moving a slip sheet to position substantially below the first sheet.

7. In a slip sheeting device, means for moving a printed sheet to a predetermined position, and means actuated by the movemoving a printed sheet to a predetermined position, means for holdingthe sheet in suchposition, and means comprising gripping fingers for moving a slip sheet to position substantially below the first sheet.

10. In a slip sheeting device, means for moving a printed sheet to a predetermined position, means for holding the sheet in such position, and means comprising gripping fingers and means engaging the printed sheet against said first means for moving a slip sheet to position substantially below the first sheet. I

' 11. In a slip sheeting device, means for moving a printed sheet to a predetermined position, means actuated from said first means for holding the sheet in such position, and means for moving a slip sheet to position substantially below the first sheet.

12. In a slip sheeting device, means for moving a printed sheet to a predetermined position, means comprising grippingfingers actuated from said first means for holding the sheet in such position, and means for moving a slip sheet to position substantially below the first sheet.

13. In a machine of the class described,

"the combination of means for advancing a printed sheet to a predetermined position and to then return to starting pos1t1on,

means for gripping one edge ofthe sheet while it is so held.

when it; reaches such predetermined position and for holding it during the return move ment of said first means, and means for re leasing the gripping means atthe completion of such return movement actuated from said first means. I

14. In a machine of the class described, the combination of means for advancing a printed sheet to a predetermined position and to then return to starting position, means for gripping and holding the sheet taut during such return movement.

15. In a machine of the class described, the combination of means for advancing a printed sheet to a predetermined position and to then return to starting position, means for gripping and holding the sheet taut during such retmn movement and for then releasing it.

16. In a machine of the class described, the combination of means for advancing a printed sheet to .a predetermined position and to then. return to starting position, means for gripping one edge of the sheet when it reaches such predetermined position and for holding it duringthe return movement of said first means, and means for drawing a slip sheet under the printed sheet on such return movement.

17. In a machine of the class described, the combination of means for advancing a printed sheet to a predetermined posit-ion and to then return to starting position, means for gripping and holding the sheet taut during such return movement, and means for drawing a slip sheet underthe printed sheet 18. In-a machine of the class described, the combination of means for advancing a printedsheet to a predetermined position and to then return to start-ing position, means for gripping and holding the sheet taut during such return movement, and

means for drawing a'slip sheet under the printed sheet while it is so held and for holding the slip sheet taut while it is being so drawn.

HENRY WAGNER DE JAR-NETTE. 

